Hi I recently acquired a gtx 590 for 65 pounds and my current PSU which is a evga 500w 80+ is not capable of reliably powering this card.I was thinking of getting an upgrade.I am on an extremely tight budget for a PSU under 45 pounds.Could you recommend me any used or new PSU links ? I live in the UK so preferably in the European union (because of import taxes) it's a bit to ask for but any advice would be helpful.(btw I cannon go over 50 pounds)